Of course, if NK starts lobbing nukes, both NK and SK may be destroyed.
NK will launch more missiles into the sea to kill the evil S. Korean porpoises.
Two B-2s, with 16 B61-11s would probably finish it off in about 14 hours from the decision. Maybe a couple more to get into night time for the actual time over enemy territory.
Yea, the South would be a mess, but not as much as the North,,, and for the first time in over 60 years, it would be over.